Neither comprehension nor learning can take place in an atmosphere of anxiety.

Curiosity is the wick in the candle of learning.

But if somebody dies, if something happens to you, there is a normal process of depression, it is part of being human, and some people view it as a learning experience etc.

I'm not afraid of storms, for I'm learning how to sail my ship.

The highest activity a human being can attain is learning for understanding, because to understand is to be free.